XQBTS glossary

A structured view of how quantum computing progress can affect cryptographic risk, readiness assumptions, and security planning.

A shorthand for the point where quantum capability becomes materially relevant to breaking currently deployed public-key cryptography under the modeled assumptions.

Public benchmark-family records and supporting source material that XQBTS admits into its methodology.

Harvest Now, Decrypt Later. In XQBTS this is expressed as a modeled exposure-pressure indicator, not direct telemetry.

The normalized axis-based view of frontier capability used to summarize utility, hardware scale, gate quality, runtime practicality, and fault tolerance.